According to a retail store.

A 370 watt solar panel is $279AUD

Using an average of 2 hours a day (To account for bad days) = 740wh / day or 185 watts average

5 days of storage is 3.7kwh or about 1/3.6 of a tesla powerwall = $4,500AUD

(4500+279)/185 = $25/watt.

Maybee double that for install costs at $50/watt.

This is of course kind of over enginerered and is throwing a lot of power away.

-

ROSA for the ISA generates 120KW and weighs 325 kg

So to generate 185 watts requires 325KG/ (120KW/185watt) = 0.5kg

Using projected starship costs(not falcon) this is about $150USD to get it into space.

This of course is ignoring the cost of building the ROSA and transmitting the power.
It also assumes you have a free way of getting the panel from LEO to GEO. (Such as a solar sail)
It also assumes you want to power 185 watts 24/7 and cannot power something that requires 200 watts for 12 hours a day

-

Despite stacking the deck in favour of space solar the costs are not even competive.

World energy use is about 20 TW, according to Wikipedia.

  Compare this to the total effective radiative forcing (ERF) of the anthropogenic greenhouse effect, 2.3 W/m^2 [www.ipcc.ch], multiplied by the surface area of the globe (510 million km^2 = 5E14 m^2), which comes to 1150 TW.

So, this may qualify as a rounding error in terms of how much power.

And because it is in eletricity you need even less energy use. (Although this may be balanced out by ineffeciencies in conversion)

The solar panel I am looking at now is

1763mm x 1040mm and is 370watts

370 watts / (1.76m * 1.04m /1 m^2 * 1361 watts) = ~15%

The cells may be 20% but the panel is not filled with cells.

The problem with LEO is not aiming, it is a case of the generator is in the shadow of the Earth.

At that point you lose the one adventage over ground based solar.

https://reneweconomy.com.au/so...

“The sheep we are running have actually done better than the sheep under normal farming conditions,” says Keith.

How long does excess H2 stay in the atmosphere?

I think people may be using solar power in space in space stations to manafacture things for Earth (Which is space based solar). But they will not feed the power into Earth grids.

1)Building a new suburb is easy just charge a % of the new homes as tax and use it to fund the cost.
2)20 years later when you need to rebuild it you can't do that so it has to come out of the taxes
3)Now you have to pay for the maintance of the old infrastructure out of the general taxes instead of jsut the new purchases.

Apparently the thinking is that quantum computers will turn AES256 into the same level of security as AES128 without quantum computers.

It is the other way around. By default they are the same, it needs to be defined as diffrent.

I am aware that a machine cannot hold copyright for one thing

Don't the AIs hallucinate things (i.e create new things)

If I open a webpage I have to make a local copy. Does this mean just reading it violates copyright?

Australia's fire was not recent, it was back in October. They are now dealing with floods.

Or cheaper per kwh solar and wind and running the desalination when their is spare power.